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Manual
API
Products
Energy level diagram, Nonmetal, Transitional
Er-O-Ti
Al-Ce-O-Y
Al-Mg-O-Ti
Al-Ce-O-Y-Yb
Al-La-O-Sr-Ta-Yb
nonmetal
transitional
lanthanoid
rare earth
chalcogen
tetragonal
cubic
monoclinic
trigonal
orthorhombic